Looks like hp on Tuesday

Ed Carpenter · 10-30-2013, 10:47 AM

I guess I missed it. When did someone get 35hp off?

Andrew Hill · 10-30-2013, 11:00 AM

Quote:

Originally Posted by deuces wild

I guess I missed it. When did someone get 35hp off?

The 1970 LT1 like I run was rated at 360 hp from the factory, but is rated 325 now, as it has been for many, many years. I don't think anyone in their right mind would consider building one at 360.

I want to know how to get smaller rod journals, a bigger carburetor, and Edelbrock heads legalized for my combo, or is that just ok for Fords?

RJ Sledge · 10-30-2013, 11:24 AM

Ed

Its just a guess you understand.....but I think it was the 1970 350/360 hp Camaro Combo that somehow got a 35 hp reduction at the beginning of 2003. I believe it is now a whopping 325 hp.

How many times have you seen that happen??

Makes you wonder! LOL

RJ

Jeff Teuton · 10-30-2013, 11:57 AM

Andrew, you got a 780 Holley which will flow more than a 1000 cfm throttle body. A 1000 cfm has 750 holes in the bottom. Looking at the specs on your motor, makes mine look like the truck motor it is derived froml 11 to one, same roller rockers I got, same cam, choice of 8 heads, some new manifold that nobody knows about, big carb (whichcfm for cfm will make more power-according to the manifold makers) and 325, all the 350's in 70 and 71 are suspect. If I had that I could run 9.70s and RJ could run 9.60's cause he is a better tuner. I guess you guys are in your right mind. I had a 35 Hudson Teraplane fastback with a V12 Hemi that got 10 off, and Sammy P. has gotten about 200 off that 427 thing he runs. RJ, nobody likes us old guys. I'm gonna complain to the AARP.

Alan Roehrich · 10-30-2013, 05:50 PM

Quote:

Originally Posted by Jeff Teuton

Andrew, you got a 780 Holley which will flow more than a 1000 cfm throttle body. A 1000 cfm has 750 holes in the bottom. Looking at the specs on your motor, makes mine look like the truck motor it is derived froml 11 to one, same roller rockers I got, same cam, choice of 8 heads, some new manifold that nobody knows about, big carb (whichcfm for cfm will make more power-according to the manifold makers) and 325, all the 350's in 70 and 71 are suspect. If I had that I could run 9.70s and RJ could run 9.60's cause he is a better tuner. I guess you guys are in your right mind. I had a 35 Hudson Teraplane fastback with a V12 Hemi that got 10 off, and Sammy P. has gotten about 200 off that 427 thing he runs. RJ, nobody likes us old guys. I'm gonna complain to the AARP.

Jeff, unless I miss my guess, I'm pretty sure the 1000 cfm EFI throttle body does not have a big booster venturi hanging out in the middle of each of those 750 cfm Holley sized throttle bores. I'm pretty sure those are a considerable restriction.

Chad Rhodes · 10-30-2013, 05:59 PM

Quote:

Originally Posted by Alan Roehrich

Jeff, unless I miss my guess, I'm pretty sure the 1000 cfm EFI throttle body does not have a big booster venturi hanging out in the middle of each of those 750 cfm Holley sized throttle bores. I'm pretty sure those are a considerable restriction.

It also flows only air, no fuel

Tom Turner · 10-30-2013, 06:13 PM

Alan; correct again! and if the booster is a restriction, how about the fuel molecule that the carb shares air space with that the throttle body does not? BTW; I'd love to have an engine in my stocker that makes 1.95 per inch that is NHRA factored at .95....should be pretty fast huh?

Frank B. · 10-30-2013, 06:01 PM

I never sat in one of those new Mustangs but they must be hard to see out of to take a 1/2 second stripe on a heads up run.

RJ Sledge · 10-30-2013, 06:18 PM

Interesting question on the air flow.

We have done extensive testing comparing a 780 against the t/b and a carb with and without boosters. Would you believe that a carb without the boosters only flows a single digit increase compared to a 780 with the boosters?

. What really helps the 780cfm flow more air than the t/b is that the carb is nearly 3 times the height (counting the air horn) as compared to a 2 inch t/b. The carb, due to its" tunnel design", has the advantage of increased velocity compared to the t/b.

This helps in the atomization of the fuel and gives it a "heavy charge" and that results in almost a 30% increase in the flow/velocity for the 780 carb compared to a "dry" T/B.

Its really elementary physic's.

How'd that sound??

RJ

Ed Carpenter · 10-30-2013, 06:28 PM

Not being a smart a.. RJ but with you switching to a Mustang doesn't that mean that you will be doing to older cars what you had done to you at Indy? Just saying ��

Your car is bad fast too!

10-30-2013, 10:47 AM	#1
Ed Carpenter Live Reporter Join Date: May 2006 Location: Dripping Springs, Tx Posts: 2,709 Likes: 186 Liked 520 Times in 132 Posts	Re: Looks like hp on Tuesday I guess I missed it. When did someone get 35hp off? __________________ Ed Carpenter 2005 Chevy Cobalt A/SM Race Engine Development

10-30-2013, 11:24 AM	#3
RJ Sledge Senior Member Join Date: Jun 2007 Posts: 783 Likes: 503 Liked 288 Times in 90 Posts	Re: Looks like hp on Tuesday Ed Its just a guess you understand.....but I think it was the 1970 350/360 hp Camaro Combo that somehow got a 35 hp reduction at the beginning of 2003. I believe it is now a whopping 325 hp. How many times have you seen that happen?? Makes you wonder! LOL RJ

10-30-2013, 11:57 AM	#4
Jeff Teuton VIP Member Join Date: Jan 2002 Location: Houma, LA Posts: 2,717 Likes: 2 Liked 325 Times in 50 Posts	Re: Looks like hp on Tuesday Andrew, you got a 780 Holley which will flow more than a 1000 cfm throttle body. A 1000 cfm has 750 holes in the bottom. Looking at the specs on your motor, makes mine look like the truck motor it is derived froml 11 to one, same roller rockers I got, same cam, choice of 8 heads, some new manifold that nobody knows about, big carb (whichcfm for cfm will make more power-according to the manifold makers) and 325, all the 350's in 70 and 71 are suspect. If I had that I could run 9.70s and RJ could run 9.60's cause he is a better tuner. I guess you guys are in your right mind. I had a 35 Hudson Teraplane fastback with a V12 Hemi that got 10 off, and Sammy P. has gotten about 200 off that 427 thing he runs. RJ, nobody likes us old guys. I'm gonna complain to the AARP. __________________ Jeff Teuton 4022 STK Last edited by Jeff Teuton; 10-30-2013 at 11:59 AM.

10-30-2013, 06:13 PM	#7
Tom Turner Member Join Date: Jan 2005 Location: Lake Tapps, Washington Posts: 137 Likes: 0 Liked 0 Times in 0 Posts	Re: Looks like hp on Tuesday Alan; correct again! and if the booster is a restriction, how about the fuel molecule that the carb shares air space with that the throttle body does not? BTW; I'd love to have an engine in my stocker that makes 1.95 per inch that is NHRA factored at .95....should be pretty fast huh?

10-30-2013, 06:01 PM	#8
Frank B. Member Join Date: Jun 2007 Posts: 140 Likes: 0 Liked 51 Times in 25 Posts	Re: Looks like hp on Tuesday I never sat in one of those new Mustangs but they must be hard to see out of to take a 1/2 second stripe on a heads up run.

10-30-2013, 06:18 PM	#9
RJ Sledge Senior Member Join Date: Jun 2007 Posts: 783 Likes: 503 Liked 288 Times in 90 Posts	Re: Looks like hp on Tuesday Interesting question on the air flow. We have done extensive testing comparing a 780 against the t/b and a carb with and without boosters. Would you believe that a carb without the boosters only flows a single digit increase compared to a 780 with the boosters? . What really helps the 780cfm flow more air than the t/b is that the carb is nearly 3 times the height (counting the air horn) as compared to a 2 inch t/b. The carb, due to its" tunnel design", has the advantage of increased velocity compared to the t/b. This helps in the atomization of the fuel and gives it a "heavy charge" and that results in almost a 30% increase in the flow/velocity for the 780 carb compared to a "dry" T/B. Its really elementary physic's. How'd that sound?? RJ

10-30-2013, 06:28 PM	#10
Ed Carpenter Live Reporter Join Date: May 2006 Location: Dripping Springs, Tx Posts: 2,709 Likes: 186 Liked 520 Times in 132 Posts	Re: Looks like hp on Tuesday Not being a smart a.. RJ but with you switching to a Mustang doesn't that mean that you will be doing to older cars what you had done to you at Indy? Just saying �� Your car is bad fast too! __________________ Ed Carpenter 2005 Chevy Cobalt A/SM Race Engine Development Last edited by Ed Carpenter; 10-30-2013 at 06:33 PM.